About this item 

• 【Dimension】Cutting Dia: 254mm | 10";Shank Dia: 11mm | 7/16",BI hole saw over 51mm require stronger shank to ensure more security;Hole Saw Depth : 38mm | 1-1/2".Adopting raw materials of Japanese brand sawbands 
• 【Extremely Long Life】The saw teeth are made of M42 high-speed steel with a hardness of ≥65HRC for longer life and durability, They are rust and corrosion resistant.The center drill is golden and titanium plated, making it stronger than silver or black 
• 【High standard】The hole saw easy to cut a variety of thick wood, plywood, plastic, drywall, soft plaster, cornhole boards and thin metals. As well as stamped cans or recessed lights, they are also suitable for home DIY in air ducts, speakers, ceiling lights and more 
• 【Professional Use】The hole saws have variable tooth pitch. The major advantage of this pitch is the reduction of vibrations and noise during cutting, resulting in smoother cutting. Saw tooth thickness 1.0mm and height 1.8~2.0mm 
• 【Efficient & Smooth Cutting】Thanks to the high performance of M42, the cutting is easy and the kerf is flat and smooth.The spring on the drill would automatically pushes the disc out of the saw immediately after completing the hole 
• 【Attention】Please wear goggles, masks, ear plugs and gloves properly when working to protect your personal safety, there are risks in using any tools, safety first